Lindsay Lohan hit up El Lay hotspot Mr. Chow's Monday night with a tall, dark and handsome mystery man … and it seems, The Canyons starlet also enjoyed a tall, cool, clear cocktail near the end of the evening!

Lilo was snapped sippin' on something from a large martini glass OUTSIDE the restaurant… which we're PRETTY sure is illegal in Los Angeles!

GIRL.

If you wanna get a little tipsy, then whatever, but why the f*ck would you walk out into the night - where you know papz are lurking in the shadows - clutching the most OBVIOUS of alcohol-holding glasses?!